New Industry Products

TI Unveils PTHxx Series PoL Plug-in Power Modules

May 26, 2003 by Jeff Shepard

Texas Instruments Inc. (TI, Dallas, TX) announced its next-generation of non-isolated power modules that are up to 70% smaller than previous board-mounted converters, and incorporate a tracking technology that simplifies voltage sequencing. Up to 96% efficient, the new point-of-load (POL) power modules offer increased flexibility for networking and industrial systems using digital signal processors, field-programmable gate arrays, application-specific integrated circuits and microprocessors that require multiple-voltage rails.

Constructed using double-sided, surface-mount technology, the new PTHxx Series of plug-in power modules will support step-down dc/dc conversion from a 3.3V, 5V or 12V input with adjustable output voltages from 0.8V to 5.5V at output currents up to 30A. The power modules incorporate an innovative new Auto-Track™ sequencing technology, which allows multiple modules to be powered up and down in sequence without external circuitry.

Occupying about half the size of a standard postage stamp, the 6A PTHxx converters support input voltages of 3.3V, 5V and 12V each. In addition to the Auto-Track feature, the 6A devices include on/off inhibit, output voltage adjust and output over-current protection. For higher efficiency, the 6A converters use a synchronous rectifier output stage with a pre-bias startup capability. In addition to the 6A family, other new PTHxx power modules support output currents of up to 10A, 15A, 20A and 30A.

The PTHxx power modules are now available in sample quantities. TI is currently accepting orders for volume production. Pricing per module in quantities of 1,000 begins at $9.95.